Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Placerville (Hangtown), Placerville District, Mother Lode Belt, El Dorado Co., California, USA


mindat Locality ID: 156733
mindat URL: http://www.mindat.org/loc-156733.html

Tectonic Settings:

Total number of sublocalities beneath "Placerville (Hangtown), Placerville District, Mother Lode Belt, El Dorado Co., California, USA": 103
Total number of bottom-level sublocalities: 97

Number of Child Localities: 68
Child Localities:
Atlantic Mine
Bird Mine
Blacklock Placer
Buckeye Hill Placer [2]
Cedar Ravine (White Rock Canyon)
Cedar Spring Mine (Cedar Ravine Placer)
Clay Hill Placer
Columbia Mine
Consolidated Hydraulic Placer
Coon Hollow
Davey Mine
Dyramid Gold Reserve Occurrence
El Dorado Slate Products Company Quarries (Chadbourne)
Electric Consolidated Mine (Electric Cons.)
Eliel L. Parker Claim
Enterprise Mine
Estelle Occurrence
Extravaganza Placer
Franklin Placer (Tockey)
Gardener Consolidated Mine (Garder Consolidated; Gardener Cons.)
Gentle Annie Mine (Accidental Claim; Independence Claim; Belle Humming-Bird Claim; Poverty Point Claim; Logan Claim; McNeil Claim; South Extension Of Napier And Surplus Claim; Sobrante Claim; Lion Claim; Jackson Claim)
George M. Clark Claim
German Mine [2]
Great Eastern And Folsom Placer
Grizzly Bear Mine
Grover Cleveland Mine (Lamont)
Guildford Mine (Poverty Point Mine; Iowa Claim; Hidden Treasure Claim; Bantam Claim; Beltie Claim; Humming Bird Claim; Poverty Claim; Brighton Claim; Bell Claim; Fortuna Claim)
Hangtown Gold Bug Park
Harrison Mine [1]
Hill Mine
Hodge And Lemon Mine
Holly Mine
Hook & Ladder Occurrence
Independent Occurrence
Indian Hill Mine
Jeffries & Company Placer
Jerusalem Placer (Jurusalem Placer)
John Blair Claim
John Steely Claim
Joseph Skinner Mine (Porphyry; Fisk)
Keegan Mine
Landecker Placer (Landecker Mine; Hope; Landecker Hope)
Lion Mine
Maryland Mine (Pacific)
McDonald And Channel Placer
McKinley Gold Standard Mine
Mierson Consolidated Mine (Mierson Cons.; Witmer Claim; Wellington Claim; Sherman Claim; Grant Claim)
Miller Mine (Ribbon Rock)
Negro Hill Mine (Negro Hill Placer)
Offin & Reed Placer
One To Sixteen And Vulture Mine
Oregon Hill And Columbia Tunnel Placer
Oregon Mine
Pacific Quartz Mine (Pacific Mine)
Pascoe Mine
Placerville Gold Mining Company Properties
Placerville Placers
Placerville Slate Products Quarry
Reed And Keyser Mine (Reed & Keyser)
Rose; Chester; Ida Oregon; And Oregon Extension Mine
Roundout Prospect (Danaber)
Samuel Sheplar Claim
Sherman Mine
Spanish Hill Placer
Texas Hill
Union Mine (Union Tunnel)
Unspecified Ti-U-quartz Occurrences [1]
Yellow Jacket Mine [2]

Latitude: 38°43'56"N
Longitude: 120°47'35"W
Decimal Degree (lat, lon): 38.732222222222,-120.79305555556
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Ag Al As Au Bi C Fe H K Mg Mo O Pb S Si Ti U V 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ArsenopyriteBrookiteChloriteClayCopperDiamondMicaMolybdeniteNoneNot in a structural group
PyriteQuartzRocksaltTalc

16 IMA Minerals at location:
Anatase  (*)Arsenopyrite  (*)Brookite  (*)Carnotite  (*)Clinochlore  (*)
Diamond  (*)Galena  (*)Gold  (*)Graphite  (*)Maldonite  (*)
Molybdenite  (*)Muscovite  (*)Pyrite  (*)Quartz  (*)Silver  (*)
Talc  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Anatase  (*)Not in a structural groupTiO211549912162
Arsenopyrite  (*)ArsenopyriteFeAsS11549569052
Brookite  (*)BrookiteTiO21154991700
Carnotite  (*)NoneK2(UO2)2(VO4)2·3H2O11549911184
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)811549561756
Diamond  (*)DiamondC1154895697
Galena  (*)RocksaltPbS2154922,15496624243
Gold  (*)CopperAu58154890,154891,154892,154896,154898,154901,154902,154903,154904,154907,154910,154912,154915,154917,154921,154922,154924,154926,154927,154928,154930,154931,154932,154933,154934,154937,154939,154942,154943,154944,154945,154946,154948,154949,154950,154951,154953,154955,154956,154957,154959,154961,154962,154963,154965,154966,154969,154970,154974,154975,154980,154981,154985,154986,154987,154988,154990,15499230554
Graphite  (*)NoneC11549422812
Maldonite  (*)NoneAu2Bi115490388
Molybdenite  (*)MolybdeniteMoS211549565800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2115495617380
Pyrite  (*)PyriteFeS24154922,154930,154956,15496939462
Quartz  (*)QuartzSiO235154890,154891,154898,154904,154910,154912,154915,154917,154921,154922,154924,154926,154927,154930,154931,154932,154933,154934,154937,154942,154943,154945,154946,154948,154949,154950,154953,154959,154961,154962,154965,154966,154969,154979,15499161156
Silver  (*)CopperAg11549565186
Talc  (*)Clay TalcMg3Si4O10(OH)211549563337


No ages have been assigned to this locality yet.
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All locality data graciously provided by mindat.org

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